This time,I'm recommending this fic named '30-Day Relationship' written by Donut-
The reason why I love this fic is because of the description of every scene.
And it's really hilarous with cute antics too.
Although the author is on semi-hiatus now,I really hope that you guise could give this fic a chance and take a look at it.
It's really good and cute.

Check her fic out! ; http://www.asianfanfics.com/story/view/334803/30-day-relationship-baekyeol